Carcasses from 18 Angus and I6 Romo Sinuano X Angus cattle were evaluated for differences in selected carcass characteristics. Breed had no effect (P > 0.10) on hot carcass weight or m. longissimus thoracis area. Romo Sinuano x Angus hegers had more marbling and a higher quality grade than Ronio Sinuano x Angus steers (P < 0.05). Extractable fat of ribeye steaks averaged 2.5% and cholesterol values were 56.2 mg/100 g. Shear force measures were unaffected (P > 0.05) by breed type or sex of animal. No difference (P > 0.10) in the ac-ceptabili5 of ribeye steaks from Angus or Romo Sinuano x Angus steers (chisquare value = 1.82) was found. These results indicate that carcass, ribeye steak and acceptability traits of the two breed groups were similar. '